'must have' games for 3ds?

Getting a 3ds soon and would like to know what are the major games already available now. I already know all the main popular games coming out later this year and everything so posting those aren't necessary.---THIS HORN OF MINE IS BURNING RED! ITS LOUD ROAR TELLS ME TO DEFEAT YOU! TAKE THIS! MY AMMO, MY STAKE AND ALL OF MY CLAYMORE! ERUPTING TRUMP CARD!

1) Play 9 Hours 9 Persons 9 Doors first, it's essential to the story of VLR.

2) Do not save in the PEC room, it can wipe your save file. To be safe, don't save in puzzle rooms at all, only main warehouses.---Baseless prediction as of 01/04/13 : the next Xbox will be called the Xbox On.